Muffle-furnace for irons.



UNITED STATES Plrrrnxrrk CFF-rca.

HUGO HENNIGER, or FRANKFoR'r-oN-THE-MAIN, GERMANY.

MUFFLE-FURNCE FOR IRONS.

SPECIFICATION forming para of Letters Patent No. 704,824, dated July 1,5, 1902.

Application filed April 29, 1902.

To a/ZZ whom it may concern: y A

Be it known that I, HUGO HENNIGER, tailor, a subject of the King of Prussia and Emperor of Germany, residing at Bibergasse 6, Frankfort-on-the-Main, in the Kingdomoflrussia and Empire of Germany, have inventedcertain new and useful Improvements in Muffle- Furnaces for Irons, of which the following is a full, clear, and exact description.

Thisinvention relates to a gas-heatedmulii furnace or stove for imparting heat to irons and the like, and-has for its object to impart ,a large amount of heatA to inassive'articles-' as, for instance, to heavy'smoothing-irons'for tailors work-rooms-so that the irons may be brought quickly to a high degree of heat in the furnace or stove with a small consumption of gas.

In order thatv my invention may be fully understood, I will proceed to describe it with reference to the accompanying drawings, ih Which Figure l is a central vertical longitudinal Section of myimproved muftle-furnace for irons, taken on the line A B of Fig. :2, theiposition of the movable parts when the-furnaceV is open being shown in dotted lines.- Fig. 2'

Underneath the gas-burner b is located a shut'- tin g-off plate d,havin g alongitudinal aperture e for admitting atmospheric air, and underv neath the'shutting-OE plate d is a guidingplate f, so that the fresh air entering through the base ofthe-grid becomes warmed by the shutting-off plate d, which is heated by the heat radiating'frorn' the gas-'ilama thereby increasing the'heatin g eectof the flame. Both the heating-Haine and the V`hot combustiongases act upon the irons c or the like, and very effectuallyso, because by reason of anon-conducting lining g, located within a mantle h and which forms an inclosing'cover or mufe, providing a combustion-chamber. The lining of the cover or muftie prevents the heat escaping through the mantle. The combustiongases retain their heat for a lon g time in the Serial No. 105,143.A (llomodel.)

furnace, as ythey are not permitted toA immeaperture t. Within the combustion-chamber formed by the cover-or mufe and spaced from the walls thereof is located an' arched guiding-plate k, providing a conduit l. In order that the hot combustion-gases may not iioW directly into the conduit Zwithont having draft-apertures m are disposed in the crown of the guiding-plate k. n

bustion-'gases escape through the apertures m in the guiding-plates 7e, whereby rarefacplace, the consequence of which is that the remaining part oi` the combustion-gases is guided to the conduit l around the guidingplate by the route indicated by the arrows, and is thus a second time guided past the object to be heated.

n. is a baffle-plate disposed underneath the aperture t' in the cover or muftle, over the aperture m in the guiding-plate, which prevents the combustion-gases in the furnace attaining too great a'speedupward, and so prevents too great a part of the combustion-gases escaping through'the apertures m in the guiding-plate k.

In order to facilitate the inserting of the iron ofthe munie has a hinge connection o back into the position shown by dotted lines in Fig. l.

`and a'gas-valve q in the supply-pipe of the gas-burner, so that when the muftle is opened 1the gas-valve is rotated, so as to turn off the gas to the gas-burner. Extending. from a point in the supply-pipe inrear (ofathe gasvalve to the gas-burner is :a small tube r, so that a lighting-up anie'is left burning when the gas-burner is out of operation.' VAfter the iron is inserted lthe act of closing' the munie turns on the gas-valve. i 1

Having thus described myinventio'm'the following is what I claim as new therein and desire to secure by Letters Patent:

l. Amuftle-furnace comprisinga munie providin g a combustion-chamber, a guiding-plate disposed within the muffle and spaced from the walls thereof; said guiding-plate being diately escape. The cover or munie has anv with the grid a, so as to enable it to he turned p is a jointed connection between the mufie' -to pass around the ironjto be heated, a few In starting the furnace a part of the cointion of' the air and gas in conduit Z takes ICO approximately arch-shaped in cross-section l and provided with restricted outlet-apertures in the crown thereof, a burner situated underneath said guiding-plate, and means for supporting the article to be heated between the burner and the guiding-plate.

2. Amuffle-furnace comprisingamufiehaving an aperture in the crown thereof and providingacombustion-chamber,an arched guiding-p1ate provided with restricted outlet-apertures in the crown thereof and disposed within the muiiie and spaced from the walls thereof, a burner situated underneath said guiding-plate, means for supporting the ar ticle to be heated between the burner and the guiding-plate, and a baffle-plate situated between the guiding-plate and the aperture in the muffle.l

3. Amuiile-furnace comprisinga Inutile providin g a combustion-chamber,an arched guiding-plate provided with restricted apertures in the crown thereof and disposed within the muftle and spaced from the walls thereof, a burner situated underneath said guidingplate, means for supporting the article to be heated between the burner and the guidingplate, a shutting-off plate having an aperture and located underneath the burner, and a guiding plate underneath. the shutting off late. p 4. .A mufe-furnace comprising a hinged mufie providing a combustion-chamber, a burner situated in the muiiie, a supply-pipe leading to theburner and having a valve, and means for communicating motion from the muffle to the valve in the supply-pipe; said valve being open when the muiiie is in operative relation with respect to the burner and closed when the mufie is moved away from` HUGO HENNIGER.

Witnesses CARL BUCKMULLER, EMIL l SCHMELL. 

